It’s not at all weird, I understand exactly why you would ask. It seems archaic from the perspective of outside of the US, but the racial tensions are very different inside. The past (as it applies to racial history) is much closer there, so it does actually bring harm to those descendants of the African diaspora.
It’s hard for me to put into words, but it goes back to the whole ‘shuckin and jivin’, uncle Tom, Mammy thing. It’s actually directly related to the suggestion that black people are humorous creatures, and it’s offensive for almost the same reason that the Hottentot Venus cake was so offensive. She appropriated the visage of a black person for “humorous” means. Not cool.
What makes it worse is the excuse of ignorance (there’s actually no excuse not to know up there) or lack of intent (which is pretty irrelevant to whether something is determined to be racist).
And then there’s the accusations of reverse racism.
It’s ugly up there. There is, in fact, no such thing as a post-racial society.